Help with session needed

Today I collect information from several forms and store it in a cookie: function formCookie() { var cookieValue = document.$formName.totalAns.value+'|'; cookieValue +=document.form1.correct.value+'$test[1]'+document.form1.question1.value+doc ument.form1.answer.value+'|'; cookieValue +=document.form2.correct.value+'$test[1]'+document.form2.question2.value+doc ument.form2.answer.value+'|'; <more lines> document.cookie = '$ansCookie='+escape(cookieValue)+';expires='; } The problem is the cookie soon reaches the 4 kb limit, so I would like to achieve the same using session. The trouble is, I don't know how to do. I would appreciate any help that brings me closer to a solution on this.